We found 9 dictionaries that define the word mortar board:

General (8 matching dictionaries)

1. mortar board: Collins English Dictionary
2. mortar-board: Wordnik
3. Mortar board, mortar board: Dictionary.com
4. Mortar Board: Wikipedia, the Free Encyclopedia
5. Mortar-board: Dictionary of Phrase and Fable (1898)
6. mortar board: FreeDictionary.org
7. mortar-board, Mortar Board: TheFreeDictionary.com

Business (1 matching dictionary)

8. Construction Term Glossary (No longer online)

Definitions from Wikipedia (Mortar Board) ▸ noun:  an American national honor society for college seniors. ▸ Words similar to mortar board ▸ Usage examples for mortar board ▸ Idioms related to mortar board ▸ Wikipedia articles (New!) ▸ Words that often appear near mortar board ▸ Rhymes of mortar board ▸ Invented words related to mortar board